Diversity of Magnetotactic Bacteria from a French Pristine Mediterranean Area

作者：Fuduche Maxime; Postec Anne; Davidson Sylvain; Chauvin Jean Paul; Gales Gregoire; Hirschler Rea Agnes; Ollivier Bernard; Wu Long Fei; Pradel Nathalie^*

来源：Current Microbiology, 2015, 70(4): 499-505.

DOI：10.1007/s00284-014-0745-y

Magnetotactic bacteria synthesize intracellular magnetite and/or greigite magnetosome crystals. They play a significant role in both iron and sulfur cycles in sedimentary aquatic environments. To get insight into the bio-geochemical contribution of MTB, more studies concerning their ecology and their distribution in diverse habitats are necessary. The MTB community of an oil-industry polluted area of the French Mediterranean coast has been previously investigated. Here, we investigate the MTB community from coastal sediments of a Mediterranean pristine area using optical and transmission electron microscopy and phylogenetic analysis based on 16S rRNA gene sequences. A particularly high diversity of MTB was observed, with cocci phylogenetically distributed across the order Magnetococcales, including a novel cluster with sequences from the Mediterranean Sea designated as "Med group", and novel morphotypes.

• 出版日期2015-4